Jon says you have to listen — ‘that’s the best thing you can do!’

After being with his partner, 40-year-old actress Jennifer Westfeldt, for 13 years, Mad Men star Jon Hamm, 39, knows a thing or two about maintaining a long and happy relationship! “A good hint for keeping a relationship is paying attention to each other,” Jon shared with HollywoodLife.com exclusively Oct. 21 at the Project ALS Event at NYC’s Lucky Strike Lanes & Lounge. “Stay relatively attuned to how the other person is feeling and pay attention.”

For Jon and Jennifer, “it’s a relationship of equals, so we try to help each other out in various projects,” Jon told us. “You have to work at it day to day. It’s something that can easily be taken for granted so you generally don’t want to do that.”